psgformat

A parser and writer for .psg AY sound chip stream files

Installation

npm install psgformat

Usage

Reading

This package exports a function readPSG which accepts a buffer containing the binary data of the .psg file, and returns the data as an array of frames. Each frame is an array of register writes, with each register write being expressed as an array [register, value].

const fs = require("fs");
const { readPSG } = require('psgformat');

const buf = fs.readFileSync('myfile.psg'));
const psg = readPSG(buf);

Writing

The package also exports a function writePSG which accepts a writable stream and an array of frames, and writes the data to the stream.

const fs = require("fs");
const { writePSG } = require('psgformat');

const frames = [
    [ [0, 1], [1, 2], [2, 3] ],
    [ [0, 4], [1, 5], [2, 6] ],
    [ [0, 7], [1, 8], [2, 9] ],
];
const file = fs.createWriteStream('myfile.psg');
writePSG(file, frames);
file.end();